Cap-locking device for grease-cups.



w. F. DARBY. CAP LOCKING DEVICE FOR GREASE CUPS.

APPLICATION FiLEUFEB. 21. 1915 2 SHEETS-SHEET I.

SMMWWtO't Patented Dec. 14, 1915.

W. F. DARBY. CAP LOCMNQOEVICE FOR GREASE CUPS.

APPLICATIGN FILED FE8. 2?'19I5- Patented Dec. 14-, 1915.

2 SHEETS-SHEET 2.

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To all whom it may; concern Be it known that l, Wrrnrasr F. Danna,citizen of the 'United States, residing at Jacksonville,in the countyRandolph State of Missouri, have invented and useful improvements inCap-Locking Devices for Grease ilups, of which the felt lowing is aspecification. l I This invention relates to improvements in grease cupdevices for applying hard lubrieating compounds to. the moving parts ofmachinery, and has for one of its objects to provide a simplyconstructed device whereby the lubricant may be forced upon the journalasfast as required and the moving parts locked in position to preventdisplacement under jars and concussions incident to devices of thischaracter.

Another object of the invention is to provide a simply constructeddevice which may be applied to the various forms of lubricating, deviceswithout material structural change.

With these and other objects in view, the invention consists incertain'novel. features of construction as hereinafter shown anddescribed, andthen specifically pointed out in the claims; andin thedrawings illustrative of the preferred embodimentof the invention,

Figure 1 is a vertical sectional elevation of the improved deviceapplied; Fig. 2 is a side elevation of the same; F ig. 3 is a transversesection on the line 3-3 of Fig. 1; Fig. 4 is a plan view in section onthe line e'i of Fig. 1; Fig. 5 is a detached perspective View of thecatch holding member; Fig. 6 is a view similar to Fig. 1, illustrating amodification in the construction; Fig. 7 is a detached perspective viewof the resilient locking member employed in the. structure shown in Fig.6; Fig. 8 is a detached perspective view of the releasing deviceemployed in the structure shown in Fig. 6; Fig. 9 is a detachedperspective view of the supporting bracket employed in the structureshown in v F ig. 6; Fig. 10 is a. perspective 1 View of a modified formof, resilient locking member; Fig. 11 is a perspective view of amodified form of the releasing member employed in'co'nnectic-n with themodified locking'member shown in Fig. 12.

Corresponding and like parts are referred to in the followingdescription. and indicated Patented Dec. is, 191255. no. tears.

' in all the views ofthe accompanying drawings by the same referencecharacters.

The improved device includes a hollow stem or body, represented as awhole at 10, and including an externally threaded lower portion 11 andenlarged into a receptacle for portion or the lubricant at the upperend, as r presented at 12. A portion of the stem between the receptaclel2 and the threaded portion 11 is formed with a plurality of wrenchengaging fiat faces, as shown in Figs. 2 and 10. The threaded portion 11is designed to engage in a journal box or ike device, a portion of whichis represented at 13, and a portion of the shaft withthe journal box isrepresented at 14. The journal box- 13 is provided with an cri- 15 forthe lubricant and communicating with the discharge orifice 16 in thestem 10. By this means the lubricant from the receptacle 12 is free topass through the 'alined'orifices to the shaft 14 in the usual manner.

The outer face of the receptacle portion 12 is externally threaded toreceive a cap device 17 internally threaded and thereby adjustablerelative to the receptacle portion 12-. The cap 18 is relatively largeand closed at the outer end and is designed to contain the remainingportion of the lubricant. At its lower edge, the cap 17 isprovided witha plurality of teeth 18 preferably rounded, as shown, the object to behereinafter explained.

In operating the device, the receptacle portion is first filled with thelubricant, and the cap 17 inverted and likewise supplied with theremaining portion of the lubricant and then engaged by its threads withthe upper threaded portion 12 of the member 10. Then, as the cap isscrewed downwardly, the lubricant is forced through the orifices to thejournal. As before stated, the lubricating material is of the hardvariety, such as tallow and the like, and will be supplied to thejournal only when forced through the orifices which is done by actucap1''? aiid it to rotate and compregs an. abnormal quantity of thelubricant through. the orifices, or rotatesin the opposite direction andfails to supply a sufficient quantity of the, lubricant. To overcomethis objection, .means are provided in the 1mproved device for lookingthe cap 17 in its adjusted position, so that after being rotated to asufiicient extent tosupply the requisite amount of lubricant to thebearing, the cap is locked in position and further movement prevented.

The improved locking device includes a holding member, represented inFig. 5 conclamped in position.

A bolt 23 extends through the terminals 2021 externally of the rivets22, and mounted for rotation upon this bolt 23 is a holding devicecomprising a bar 24 having a spring engaging extension 25. At its upperend the bar 24 engages with the teeth 18 one at a time, and thus locksthe cap 17 in position relative to the stem, while at the same time thebar may be readily released from the teeth when the cap is to be actuated to force the lubricant through the orifices. A spring or likedevice 26 isemployed to hold the member 24 either in engagement with theteeth or free therefrom,

' and is preferably coupled to. the rivets 22 between the terminals20-21 of the band 19. The spring is provided with a depres sion toreceive the extension 25 of the member 24, as shown in Fig. 1, but willyield to pressure suflicient to move the member 24 outwardly to free thesame from engagement with the teeth 18, and will then exert its force tohold the member 24 in disconnected position and free the cap 19 when afresh supply of lubricant is to be placed in the device, or to hold thecap unlocked when it is being manipulated to supply the lubricant to thedevice. Then, after the cap 17 has been actuated to the required extent,an upward movement of the member 24 will restore it to its position inengagement with the adjacent tooth, while at the same time the spring 26will again engage with the extension 25 and hold the bar in position.

In, Fig. (3 a slight modification is shown in the construction of thelocking device including a bracket 27 having ears 28 spaced apart andconnected in any suitable manner to the portion 12 of the stem. A pivotbolt or like device 29 passes through the ears. In the modifiedstructure shown in Fig. 6 the member 24 is continued downwardly andriveted or otherwise secured to the portion 12 of the stem, and is thusheld normally in yieldable engagement with one of the teeth 18.

Mounted to swing upon the pivot 28 be.

tween the cars 28 is a combined releasing and locking device includingan upper reduced portion 30 and a lower cam like portion 31, the upperportion 30 being bent outwardly and passing through a slot 32 in themember 24, while the cam like portion bears normally against the innerface of the member 24, as shown. When the parts are arranged as shown inFig. 6, the releasing member exerts no influence, but when the member 24is to be released, an outwardly and downwardly exerted pressure upon theportion 30 will cause the cam like portion 31 to move the member 24outwardly and release it from the teeth 18, and hold it thus free untilthe portion 30 is moved upwardly again.

In Figs 10 and 11 the member 24 is shown without the slot 32 and themember 30 provided with a slot 33 to receive the member 24.

This arrangement of the parts may be employed, if preferred, but wouldnot be a departure from the principle of the invention, or sacrificingany of its advantages.

Having thus described the invention, What is claimed as new is 1. Agrease cup including a base portion having a receptacle for a portion ofthe lubricant and a discharge orifice, said base portion adapted to becoupled to a bearing, a cap movably engaging said base portion andhaving a plurality of laterally directed teeth, a resilient armconnected to said base and yieldably engaging said teeth, one at-a time,and a releasing device adapted to engage said resilient arm and move thesame out of the path of the teeth and hold it in released posi ion.

2. 'A grease cup including a base portion having a threaded terminal andwrench receiving faces, a receptacle for a portion of the lubricant andhaving a discharge orifice, a cap movably engaging said base portion andhaving a plurality of laterally directed teeth, a band adapted to beclamped to said base portion, an arm associated with said band andextending into the path of said teeth and engaging the same one at atime, and a spring operating to maintain the arm yieldably both inoperative and released position.

3. A grease cup including a base portion having a receptacle for aportion of the lubricant and a discharge orifice, and adapt ed to becoupled to a bearing, a cap movably engaging said .base portion andhaving a plurality of laterally directed teeth, a divided band adaptedto be clamped to said base portion and with the terminals extendedlaterally, a clamping device operating through said extended terminals,an arm mounted to swing between the terminals of said band and extendinginto the path of said teeth and engaging the same one at a time, and aspring operating to maintain said arm in yieldable engagement with saidteeth. v

4. A grease cup including a base having a receptacle for a portion ofthe lubricant and a discharge orifice, said base adapted to be coupledto a bearing, a cap movably engaging said base and having a plurality oflaterally directed teeth, a support including spaced ears and connectedto said base, a yieldable arm associated With said base andextending-into the path of said teeth and en'- gaging the same one 'at atime, and means carried by said ears for holding said arm disengagedfrom the teeth.

5. A grease cup including a base portion having a receptacle for aportion of the lubricant and a discharge orifice, said base portionadapted to be coupled to a bearing, a cap movably engaging said baseportion and having a plurality of laterally directed teeth, an armcarried by said base and en- .WILLIAM F. DARBY. [L.s.]

Witnesses:

FRANK HAYNES, W. M. BEATS.

